Top Java Developer Jobs in Baltimore, MD

Develop and maintain software solutions supporting national security missions. The engineer will assist with daily software engineering responsibilities and contribute to timely, innovative solutions using Python, Kotlin, Java, Terraform, Elasticsearch/OpenSearch, and AWS. The role requires substantial experience on comparable programs, a relevant bachelor's degree or equivalent experience, and an active Top Secret/SCI clearance with a favorable polygraph.

Develop and maintain software solutions supporting U.S. government missions. The engineer will contribute to daily software engineering responsibilities, build and innovate solutions, and work with Python, Kotlin, Java, Terraform, Elasticsearch/OpenSearch, and AWS. The role requires extensive comparable software engineering experience, a relevant bachelor’s degree or equivalent experience, and an active Top Secret/SCI clearance with a favorable polygraph.

Develop and support cloud software applications for national security missions. Responsibilities include programming in Java, C, or C++, designing applications for Windows or UNIX/Linux environments, and working with Hadoop, MapReduce, Accumulo, AWS, and Ruby on Rails. The role requires maintaining a Top Secret/SCI clearance with a favorable polygraph and supporting daily engineering responsibilities.

Develop and support software solutions for national security missions. Responsibilities include Java software engineering, requirements gathering, workflow documentation, problem solving, and collaboration using Confluence and Jira. Preferred experience includes AWS, Maven, Git/GitLab, MapReduce, JUnit, Python, Linux, streaming capabilities, and AI. The role requires a current Top Secret/SCI clearance with favorable polygraph and U.S. citizenship.

Develop software using AWS managed services and related technologies to support national security missions. The role requires building, innovating, and delivering software solutions in a timely manner while collaborating on projects with similar scope, processes, and complexity.

Develop and modernize scalable Java and Angular applications processing large volumes of enterprise data. Responsibilities include REST API development, relational database optimization, containerization with Docker and Kubernetes deployment, automated testing, GitLab CI/CD, technical documentation, and backup database administration. The role contributes to architecture decisions, troubleshooting, code reviews, and mission-critical software modernization while requiring an active Top Secret/SCI clearance with favorable Polygraph.

Develop, integrate, implement, and sustain a Linux-based tools suite supporting secure credential management, privileged access, secrets management, and automation. Serve as the Linux tools subject matter expert while collaborating with security, infrastructure, and DevOps teams. Responsibilities include Python, Java, Bash, Linux administration, Delinea product support, IAM/PAM, distributed-system troubleshooting, REST integrations, CI/CD secrets automation, IaC, containerization, and large-cluster sustainment.

Develop and maintain software supporting a national security mission. Responsibilities include Zabbix development, scripting, and software engineering in Python, Java, CSC, and Linux environments. The role requires collaboration on daily program responsibilities and delivering timely, innovative solutions. Candidates must hold an active Top Secret/SCI clearance with a favorable polygraph and have substantial software engineering experience plus a bachelor's degree.

Architect, develop, maintain, and enhance complex full-stack software systems supporting mission-critical environments. Build scalable solutions for large datasets, real-time systems, analytics, and enterprise applications using Java, JavaScript, and modern frameworks. Design reusable components, optimize performance, collaborate with stakeholders, support the full software development lifecycle, and mentor developers while influencing technical direction.

Build full-stack mission software for an Intelligence Community SIGINT program. Develop responsive front-end interfaces and scalable Java Spring Boot REST APIs, integrate services, support cloud deployments, troubleshoot performance, and participate throughout the software lifecycle. Collaborate with product owners, testers, and developers while documenting work in Jira, Confluence, SharePoint, or similar tools. The role is onsite at Fort Meade and requires an active TS/SCI clearance with Full Scope Polygraph.

Develop and support cloud-native Java software for massively parallel, data-intensive analytics platforms. Build scalable distributed systems using Kubernetes, Hadoop, and Accumulo; automate authorization-to-operate processes through the Risk Management Framework; and deploy and maintain AWS cloud resources with Terraform and CI/CD pipelines. Collaborate with multidisciplinary teams on mission-critical national security systems while troubleshooting, testing, securing, and improving enterprise software.

Develop and maintain cloud-based software supporting intelligence operations. Design scalable distributed systems, integrate and test software components, build modern React web applications using JavaScript, TypeScript, and Kotlin, and work with massive datasets using HBase, Accumulo, or BigTable. Produce technical documentation and operate in Linux/UNIX environments while collaborating with cross-functional teams on high-performance, secure solutions.

Develop and maintain Java-based web applications that automate data management and approvals for intelligence community data custodians. Design complex algorithms, ensure quality and performance, improve documentation and development processes, gather software requirements, and support installation and operational monitoring. The role uses Agile methods and technologies including Quarkus, PrimeFaces, SQL, PostgreSQL, and Elasticsearch.

Design, develop, test, operate, and secure software systems using Java and advanced security practices. Responsibilities include code reviews, vulnerability mitigation, debugging, architecture-wide development, RESTful services, technical documentation, and collaboration on reliable, scalable solutions. The role requires an active TS/SCI clearance with current polygraph and supports national security programs.

Develop and support large-scale enterprise Java applications and backend services for a federal credentialing and case management system. Responsibilities include building Spring-based REST APIs, responsive web interfaces, mobile application components, data integration and reconciliation logic, reporting tools, and CI/CD pipelines. The role collaborates with cross-functional Agile teams and requires on-site work in Columbia, Maryland at least three days per week.

Develop and maintain Java applications for large-scale distributed computing environments supporting the Intelligence Community. Responsibilities include full lifecycle software development, system integration, testing, deployment, CI/CD, Infrastructure as Code, containerized microservices, production monitoring, troubleshooting, performance optimization, and Tier III on-call support. The role also involves code and architecture reviews, stakeholder collaboration, and mentoring junior developers.

Develop scalable Java Spring Boot APIs, microservices, React-based interfaces, ETL pipelines, and SQL data solutions. Deploy workloads on AWS, optimize performance, implement monitoring and automation, and collaborate with product, frontend, data, and DevOps teams. The role also contributes to architecture, accessibility, reliability, and data-driven product improvements.

Develop and maintain Java applications, RESTful services, and Angular frontends using Spring Boot and NgRx. Deploy applications to cloud platforms, practice TDD, manage CI/CD with Jenkins, and work with Oracle and PostgreSQL databases. Participate in agile processes, collaborate with cross-functional teams, mentor engineers, and independently lead technical initiatives and feature delivery.

Develop and maintain Java 21+ Spring Boot microservices and RESTful APIs for federal agency applications. Responsibilities include PostgreSQL database development, Redis caching, Docker and Kubernetes deployments, automated testing with JUnit and Mockito, API documentation, CI/CD contributions, troubleshooting, security implementation, code reviews, and Agile collaboration. The role is fully remote and offers opportunities to expand expertise in cloud-native architecture, distributed systems, Kubernetes, and DevOps.

Develop and modernize legacy Java-based applications, primarily JSP monoliths, while diagnosing issues, reducing technical debt, improving reliability, and integrating adjacent systems. Independently gather requirements, solve complex technical problems, communicate with stakeholders, present designs, mentor junior engineers, and participate in technical interviews. React and JavaScript development may support cross-functional needs.

Design, develop, and maintain Java-based microservices and APIs supporting geospatial analysis, data processing, ETL, and visualization. Lead geospatial feature implementation, integrate relational and NoSQL data stores, and contribute to cloud-native architectures, containerization, DevSecOps, and CI/CD automation. Collaborate with stakeholders on requirements and project planning, conduct code reviews, and mentor junior engineers while delivering mission-critical enterprise capabilities.

Develop and maintain scalable Java and Spring Boot backend applications, microservices, and RESTful APIs. Responsibilities include database integration, code reviews, performance optimization, production troubleshooting, testing, CI/CD, cloud deployment, and collaboration with product, QA, and DevOps teams.

Leads architecture and hands-on development of Java and AWS cloud solutions, including microservices, distributed systems, APIs, and AI-enabled applications. Defines technical strategies, engineering standards, and roadmaps; contributes to coding, reviews, troubleshooting, and deployment. Partners with clients and delivery teams, mentors engineers, supports consulting proposals, and drives scalable, secure, resilient solutions using modern DevOps and agile practices.

Develop and maintain scalable Java and Spring Boot backend applications and REST APIs. Optimize CPU, memory, and overall application performance; identify bottlenecks; resolve production issues; and contribute to architecture, code reviews, reliability, and scalability. The role also involves Node.js or Python FastAPI services, cross-functional collaboration, and potential work with GraphQL, generative AI, cloud platforms, containers, CI/CD, and monitoring tools.

Designs, develops, tests, documents, and operates large-scale distributed software products for Allstate’s Enterprise Payments organization. Responsibilities include building Java and Spring Boot REST APIs, designing microservices, collaborating on system architecture, practicing paired programming and test-driven development, establishing CI/CD pipelines, improving performance, securing APIs, supporting production applications, and contributing to Agile planning, retrospectives, and knowledge sharing.